First of all simond many congratulations a fine Denarius of Nerva....It will clean up beuitifulll and probably a good silver, can't help noticing the mark on the portrait around 2 o'clock ? did it come up like it or have you stated cleaning it....

It came up caked in muck, I didn't want to put a toothbrush anywhere near it so put it in the ultrasonic bath and it came out with that patch of silver showing through. What looks like a chip on the bottom is also just a bit of silver poking through. I can't see any damage to it at all